flutter bloc pattern

  • 文字教程

https://www.raywenderlich.com/4074597-getting-started-with-the-bloc-

pattern

 

  • 概念

This architectural contract is not too dissimilar from classical MVC. The UI/Flutter layer can only talk to the BLoC layer. The BLoC layer sends events to the data and UI layers and processes business logic. This structure can scale nicely as the app grows.

 

Streams, like Futures, are provided by the dart:async package. A stream is like a Future, but instead of returning a single value asynchronously, streams can yield multiple values over time. If a Future is a value that will be provided eventually, a stream a series of values of that will be provided sporadically over time.

 

 

 

同时或者近似同时播放多个animation , 以及怎样与flr互动

  • 互动参考:

https://medium.com/filledstacks/better-animations-in-flutter-using-flare-an-experiment-ddcb35ab0650

 

 

  •  mixin , 也就是把2个动画混合 。  参考 :

https://github.com/2d-inc/Flare-Flutter/tree/09b307c113e2b10c7a7bcc07ca9d2f50aff94cb3/example/penguin_dance

 

但是源代码不能编译, 需要把 implement 改为  with  , 此答案来自:

https://github.com/xuelongqy/flutter_easyrefresh/issues/78

 

 

 

wow classic pvp macro

  •  warrior

 

 

python 数值分析

 

python 时间序列建模

  • 最基础的,  up , down 的趋势怎么判断  ?

 

 

  • 参考文章 :

A comprehensive beginner’s guide to create a Time Series Forecast (with Codes in Python and R)

https://www.analyticsvidhya.com/blog/2016/02/time-series-forecasting-codes-python/


金融时间序列分析  第三版

 


https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5283670/检测时间序列的突然变化


 

https://techrando.com/2019/08/14/a-brief-introduction-to-change-point-detection-using-python/   

用python实现

关键字 : Detecting changes in a time-series


 

理论论文:

1801.00718


电子书 about forecasting

https://otexts.com/fpp2/appendix-using-r.html

 

  • 关键字

Change point detection (or CPD)

time serial   时间序列

Trends    趋势

Irregularity  或者叫 noise , 噪音,扰乱

 

  • 要达到的效果

大致类似这个

https://patents.google.com/patent/CN106600410A/zh